Improved rag-whipper amd duster for treating- paper stock



` L. BRAINARD. RAG WHIPPER AND DUSTER FOR TREATING PAPER STOCK, m.

No.1100,71*8. Patented Mar. l5, 1870.

inted tsics LEVERET'I BRAINARD, 0F HARTFORD, CONNlilCTICU'Ii'.`

Letters Patent No. 100,718, dated .Ma/rch 15, 1870.

IMPROVED RAAG-WHIFPER AND DUSTER .FOR TREATING- PAPER STOCK, 84o,

The Schedule `referred to in these Lettera Patent and making part of the same.

Nature and Objects of the Invention.

.When paper is made from rags, itis necessary and convenient that the rags should be separated or looserred upand opened, and in all cases that the dust should be removed and separated from them both before and after' they are sorted, also before andafter they are' cut, and at any time before they are put into the boiler or bleach; and

My machine is'for removing and separating the dustand all loose dirt from the rags, as well as for separating, loosening, and opening the rags from bales, or in any other condensed shane in which they may be brought to the mill.

The machine consists of a revolving drum with loose or swinging arms, up to or against which the "rags ai'e"'fed, and by the arms are .whipped or struck with such force as to carry them around under the drum upon a metal apron having an even or smooth surface, or with a corrugated or irregular surface, said apron to be perforated wit-hholes, through which dust can escape.

The rags pass out at the opposite side of the cylinder from which they are fed, either directly, or, for

. the purpose of still further separating the dust from the rags, they are caused to pass through a hollow revolving cylinder, also perforated with holes through which dust can escape, said cylinder to be driven by a belt and pulley, or by a gear or otherwise, as may be desired.

At the upper portion of the machine, at aconvenient pointwill be left an opening for the purpose of ventilation and carrying off the light dust, a strong current of-air being created by -the rapid revolutions of the drum.

vDescription of the Accompanying Drawings.

Figure 1 is a perspective view of the machine with the sides next the observer removed.

General Description.

dimensions, driven in the direction indicated by the i arrow, by a belt running upon the pulley b.

To this cylinder are fastened by a loose joint, at

-may consist of straightpieces, as e c, &c., or of pieces of chain, as d d, Src.

The rags are fed into the machine from the side f, f

and they escape at the other side,l and, if defrired,

through the revolving perforated cylinder' g, made to revolve by means of the belt h running in a groove made for that purpose on the small end of the cylinder g.

This cylinder is perforated with holes for the purpose of allowing'the dust to escape, and the escape of dust is accelerated by the revolution of the cylinder. A

This revolving perforated cylinder is not in itself a new invention, but its combination with the other parts named herein is something new, and is a part vof my invention.

This cylinder may point straight out from the thrashing-drum c, as shown, or it may be turned at.`

any desired angle, and in case it is-or is not-turned oli' at an angle, a wooden or metal wall may be left directly iu front of the thr'ashing-drum, against which '.lhe arms c and Z of the thrashing-'cylinder ashould not, of cour-Se, belong enough totouch the apron c as'they revolve, but they should come tolerably near to it. I have `found from a halt' inch to an inch and a half to be a good working distance, according to circumstans.

It is intended to run the thrashing-drinn a at a speed of about three hundred (300)V revolutions per minute, though, under differing circumstances, it inn-y sometimes be best to run somewhat faster' or slower.

The arms c and d being loose, so as to swing iee on the drum a, -the high speed at which they run will most completely whip and dust the ragsfed into the machine.

The perforated corrugated metal apron f will assist in the operation, as will also the revolving perforated cylinder g.

Claims.

I claim as my invention-' l. 'lhe drum a, provided with the jointed ,swinging arms c and 1, either'wlrole or linked, constructed, ar-

ranged, and operated substantially as described, for

the purpose set forth.

2. 'lhe corrugated metal apron e,-cther perforated i or not, constructed, arranged, and operated substan- Thc letter' a indicates a cylinder of airy convenient i tially as described, for the purpose set forth.

3. The combination of the armed drum a and apron e, constructed, arranged, and operated as described, for the purpose set forth. either regular 0r' irregular intervals, metal arms, which y 4. The combination of the armed drum a, the metal apron e, smooth or corrugated, and the hollow revolv i ing perforated cylinder g, the whole constructed, an yUnder this revolving cylinder, with its Hail-like or ranged, and operated substantially as described, for the purpose set forth;

LEVERETT BRAINARD.

Witnesses:

W. En. SrMoNos, WALTER WINTER. 

